Question

I would like if anyone could help me with a regex or any method in PHP for getting WordPress version in readme.html file like this one:

<h1 id="logo" style="text-align: center">
<img alt="WordPress" src="wp-admin/images/wordpress-logo.png" />
<br /> Version 2.8.1
 </h1>

Thank you!

Answer 1

Pure Regex

preg_match("/Version\s+([\d.]+)/", $html, $match);
$version = $match[1];

With DOMDocument

$doc = new DOMDocument;
$doc->loadHTML($html);
$text = trim($doc->getElementsByTagName("h1")->item(0)->textContent);
$index = strrpos($text, " ");
$version = substr($text, $index+1);